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Reaction thermogravimetric analysis system for synergistic heating process of electrical heating and microwave heating

A technology of thermogravimetric analysis and microwave heating, which is applied in the direction of analyzing materials, weighing materials, measuring devices, etc., can solve the problems of lack of electric and microwave synergistic heating reaction thermogravimetric equipment, and can not reflect the temperature field well, etc., to achieve The effect of small error, various functions, and increased contact probability

Active Publication Date: 2015-10-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a reaction thermogravimetric analysis system with electric and microwave synergistic heating, so as to solve the problem that in the prior art, whether it is thermocouple or infrared thermometer temperature measurement, all parts of the whole area cannot be well reflected Temperature field, lack of reaction thermogravimetric equipment to realize electric and microwave synergistic heating

Method used

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  • Reaction thermogravimetric analysis system for synergistic heating process of electrical heating and microwave heating
  • Reaction thermogravimetric analysis system for synergistic heating process of electrical heating and microwave heating

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specific Embodiment approach 1

[0030] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, this embodiment includes a flue gas analyzer 22, a filter barrel 23, a microwave heating system, a silicon carbide rod heating source, an experimental reactor, a heat preservation system, a quality measurement system, a temperature measurement system and an atmosphere adjustment system;

[0031] The silicon carbide rod heating source includes at least two silicon carbide rods 6;

[0032] The experimental reactor comprises a reaction box 27 and a furnace tube 4;

[0033] The heat preservation system includes a furnace liner 18 and a heat preservation layer cover 19;

[0034] The mass determination system includes a sample crucible 7, an electronic balance 16 and a sample holder 17;

[0035] The temperature measurement system includes an infrared window 2 and a thermocouple 8;

[0036] The outer wall of the reaction box 27 is provided with a microwave heating system, and the ins...

specific Embodiment approach 2

[0041] Specific implementation mode two: combination figure 1Describe this embodiment, the atmosphere adjustment system described in this embodiment includes gas mixing tank 9, four-way valve 10, deaerator 12, two mass flow meters 11, two gas cylinders 13 and two regulating valves, each The gas cylinder 13 communicates with the bottom end of the furnace tube 4 through the gas mixing tank 9 and the four-way valve 10 successively. One gas cylinder in the two gas cylinders 13 is connected with a deaerator 12, and each gas cylinder 13 A mass flow meter 11 and a regulating valve are provided. The atmosphere regulating system in this embodiment is connected to the furnace tube 4, and the atmosphere in the furnace tube 4 is adjusted according to the actual situation. The heating atmosphere can be an air atmosphere, an inert atmosphere, an oxidizing atmosphere or a reducing atmosphere. Other structures and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0042] Specific implementation mode three: combination figure 1 Describe this embodiment, the silicon carbide rod heating source described in this embodiment also includes at least two clips 5 for silicon carbide rods, the clips 5 for silicon carbide rods and the silicon carbide rods 6 are set in one-to-one correspondence, and each silicon carbide rod 6 The top end is detachably connected to the outer wall of the furnace liner 18 by the clip 5 corresponding to the silicon carbide rod. In this embodiment, the silicon carbide rod 6 is installed in the furnace liner 18 and the furnace chamber 26 through the silicon carbide rod clamp 5, which can achieve a heating temperature of up to 1400°C; other structures and connections are the same as in the second embodiment.

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Abstract

The invention provides a reaction thermogravimetric analysis system for a synergistic heating process of electrical heating and microwave heating and relates to a reaction thermogravimetric analysis system. The system solves the problems in the prior art that the temperature field of each part within an entire region cannot be well reflected through the temperature measurement of either a thermocouple or an infrared thermometer and no reaction thermogravimetric equipment for realizing the synergistic heating process of electrical heating and microwave heating is available. According to the technical scheme of the invention, the outer wall of a reaction tank is provided with a microwave heating system. A furnace tube successively passes through the reaction tank and a furnace lining from top to bottom. At least two silicon carbide rods are arranged in a hearth and are positioned closer to the furnace tube. A sample bracket is arranged in the furnace tube in the penetrated manner. The top end of the sample bracket is provided with a sample crucible. The bottom end of the sample bracket is provided with an electronic balance. The bottom end of the furnace tube is communicated with an atmosphere adjustment system. One end of a filter vat is communicated with the top of the furnace tube. The other end of the filter vat is connected with a computer via a flue gas analyzer. The temperature measurement terminal of a thermocouple is placed in the hearth. The system is applied to reactions during the synergistic heating process of electrical heating and microwave heating.

Description

technical field [0001] The invention specifically relates to a reaction thermogravimetric analysis system for electricity and microwave co-heating. Background technique [0002] Thermogravimetric analysis refers to a thermal analysis technique that measures the relationship between the mass of the sample to be tested and the temperature change under program-controlled temperature. It is an important method for studying material properties and reaction laws. At present, thermogravimetric analysis usually uses a small amount of sample, and heats the sample by electric heating, which is an external heating method; uses a thermocouple to measure the temperature of the atmosphere around the sample to represent the temperature of the sample, and studies the temperature of the sample at a specific temperature. Mass-time relationship or mass-temperature relationship. Since the amount of sample used is very small, and the temperature of the atmosphere around the sample is used inste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/00
Inventor 韦振祖高建民杜谦栾积毅高继慧赵广播吴少华秦裕琨
Owner HARBIN INST OF TECH
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